The gas supply pressure pipe /HDPE water single and multi-layer co-extrusion production line selects the high-efficiency extruders dedicated to HDPE and PP pipes of our company. This equipment can adopt dedicated extrusion dies and has multi-layer co-extrusion technology, with large and stable extrusion volume and reduced production costs.It can produce PE80 and PE100 pipes with diameter of 20mm ~ 2000mm.The surface of the pipe is smooth, the wall thickness is uniform, and the specifications reach the international product standards. This production line is widely applied in fields such as municipal water supply, agricultural irrigation, and urban gas transmission.

Technical specification

Technological processes
[Feeding&Drying] → [Extrusion Molding] → [Mold Shaping] → [Cooling] → [Traction and Cutting] → [Marking]

Main equipment list
-1set Vacuum loader
-1set Hopper dryer
-1set High-effeciency single screw extruder
-1set 25/25 single screw extruder for mark line
-1set Vacuum calibration table
-2/4 set Water spraying tank
-1set Hauling machine
-1set Cutting machine
-1set Stacker

Equipment detai photos
1. Single Screw Extruder
Single screw extruder is composed of AC motor, hard toothed surface reduction gear, extruding system, heating and cooling system, and electrical controlling part. AC motor transfer the power to reduction gearbox via V-belt wheel and make screw rotate at certain speed to adapt to extruding all kinds of plastics.



2. Die-Head
Die-head is mainly composed of mandril, neck mold, spiral body, cover, die-head body, bolts, and heating rings. The inside surface touching with plastic materials is polished and chrome plated to ensure plastic materials flow smoothly and to ensure no rusting. The uniformity of pipe wall thickness can be adjusted by bolts. The copper calibrating sleeve fixed in die-head is mainly used to cool down the fresh pipe and to calibrate the pipe outer diameter.


3. Vacuum forming tank
Vacuum forming tank is mainly composed of frame, stainless steel tank, vacuum system, spray cooling system, back and forth mobile device. When it is at work, the vacuum pump exhausts the air from the sealed tank to pressurize the fresh pipe cling to calibrating copper sleeve and to realize calibrating the pipe outer diameter. Spray cooling system is used to cool down the extruded pipe by water. Spray nozzles spray cooling water from all directions on pipe surface to cool down the pipe promptly.


4. Water Cooling Tank
Water cooling tank is mainly composed of frame, stainless steel tank, and spray cooling system. Spray cooling system is used to cool down the pipe further and to realize cooling completely and forming.



5. Haul-off Machine
Haul-off machine is mainly composed of driving device, haul-off chain, clamping structure, adjusting system, side plate, and foundation bed. Haul-off tracks are AC motor driven and adopt frequency control of speed to adapt to different pipes extruding speed. It is also equipped with automatic length measuring device to realize cutter cutting at set length.



6. No-Dust Planetary Cutter
It adopts blade punching principle to realize no-dust cutting. It is mainly composed of cutting device, clamping device, structure synchronous mobile device, and frame.



7. Discharging Frame
The table surface is made of stainless steel. It adopts pneumatic overturn and discharging automatically.

Efficient extruder:
High efficiency extruder, with barrier screw, mixing head and slotted barrel.
Plasticizing mixing effect is better, extrusion volume is large, good stability.

Excellent spiral Die head:
Adopt spiral die head.
Low working melt temperature, good mixing performance, low cavity pressure, good stability.

Sole glue cooling:
Unique sizing and cooling system technology (water film lubrication + water ring cooling).
Meet HDPE/PP material requirements to ensure stable pipe diameter and roundness in high-speed production.

Intelligent control
Production line adopts PLC control.
Equipped with intuitive man-machine interface, all process parameters can be set and displayed by touch screen.

Technology cost reduction
The application of extrusion dies and multi-layer composite co-extrusion technology has significantly reduced production costs.

-Adopt advanced technology
-Stable operation
-High degree of automation, saving labor costs
-Good quality, meets international standard
-Supply full completed production solution: design, installation, commissioning,training
-Share you 389 sets of production experience from all the world
-Having 9 professional senior engineers
-Having a high-end plastic machinery equipment expert workstation in China